No

Original/mg

Added/mg

Detected/mg

Recovery/%

X/%

RSD/%

1

2.7878

0.7260

3.500

98.2

2

2.7864

0.7075

3.478

97.9

3

2.7841

0.7278

3.513

100.2

4

2.7856

0.7131

3.490

98.8

98.0

1.42

5

2.7834

0.7023

3.463

96.8

6

2.7822

0.7045

3.460

96.2